<template>
	<!-- m -->
	<view class="goods-box" @tap="click">
		<view class="img-box">
			<image class="goods-img" lazy-load fade-show :src="image" mode="aspectFill"></image>
		</view>
		<view class="goods-bottom u-p-14"
			:style="type ? 'background-image: url(' + $IMG_URL + typeMap[type].goodsBg + ')' : ''">
			<view class="title u-ellipsis-2 u-m-b-10">
				<view class=" sm cu-tag radius title-tag u-m-r-10"
					:style="{ backgroundColor: typeMap[type].tagBg, color: '#fff' }" v-if="type">
					{{ typeMap[type].text }}
				</view>
				{{ title }}
			</view>
			<view class="sub-title u-ellipsis-1 u-m-b-10" v-show="subtitle">{{ subtitle }}</view>
			<view class="u-m-b-20">
				<view class="cu-tag line-red sm radius" v-for="(item, index) in tagTextList" :key="index">{{ item }}
				</view>
			</view>

			<slot name="cardBottom">
				<view class="u-flex u-col-center u-row-between">
					<view class="price-box">
						<view class="price u-m-b-10">{{ price }}</view>
						<view class="origin-price">￥{{ originPrice }}</view>
					</view>
					<!-- 加入购物车 -->
					<view class="cart-box">
						<!-- 单规格 -->
						<view class="" v-if="!detail.is_sku">
							<button class="u-reset-button cart-btn u-flex u-col-center u-row-center"
								v-if="!isCart(detail.id)" @tap.stop="addCart(detail.sku_price[0])">
								<view class="u-iconfont uicon-shopping-cart-fill" style="color: #fff;"></view>
							</button>
							<view class="num-step" @tap.stop v-else>
								<u-number-box :value="checkCart[detail.id].num" :min="0" :step="1" :long-press="false"
									:max="detail.sku_price[0].stock  > 999 ? 999 : detail.sku_price[0].stock"
									@min="onMin" @plus="plus($event, detail.sku_price[0])"
									@change="onChangeNum($event, detail.sku_price[0])"></u-number-box>
							</view>
						</view>
						<!-- 多规格 -->
						<button class="u-reset-button item-btn cart-btn  u-flex u-col-center u-row-center"
							@tap.stop="selSku(detail)" v-else>
							<view class="u-iconfont uicon-shopping-cart-fill" style="color: #fff;"></view>
						</button>
					</view>
				</view>
			</slot>
		</view>
		<!-- 规格弹窗 -->
		<shopro-sku v-if="showSku && goodsInfo.id" v-model="showSku" :goodsInfo="goodsInfo" buyType="cart"></shopro-sku>
	</view>
</template>

<script>
	/**
	 *shoproGoodsCard - 商品列表卡片
	 * @property {Object} detail - 商品详情
	 * @property {String} type - 商品类型
	 * @property {String} image - 商品图片
	 * @property {String} title - 商品标题
	 * @property {String} subtitle - 商品副标题
	 * @property {String | Number} price - 商品价格
	 * @property {String | Number} originPrice - 商品原价
	 * @property {String | Number} sales - 商品销量
	 * @property {Array} tagTextList - 活动标签
	 * @event {Function} click 商品被点击
	 */
	import { mapMutations, mapActions, mapState, mapGetters } from 'vuex';
	export default {
		components: {},
		data() {
			return {
				showSku: false,
				goodsInfo: {}, //商品详情
				typeMap: {
					seckill: {
						text: '秒杀',
						tagBg: '#FF5854',
						goodsBg: '/imgs/tag/seckill_y_bg.png'
					},
					groupon: {
						text: '拼团',
						tagBg: '#FE832A',
						goodsBg: '/imgs/tag/groupon_y_bg.png'
					}
				}
			};
		},
		computed: {
			...mapGetters(['cartList', 'checkCart'])
		},
		props: {
			detail: {
				type: Object,
				default: () => {
					return {};
				}
			},
			type: {
				type: [String, null],
				default: ''
			},
			image: {
				type: String,
				default: ''
			},
			title: {
				type: String,
				default: ''
			},
			subtitle: {
				type: String,
				default: ''
			},
			price: {
				type: [String, Number],
				default: ''
			},
			originPrice: {
				type: [String, Number],
				default: ''
			},
			sales: {
				type: [String, Number],
				default: ''
			},
			tagTextList: {
				type: Array,
				default: () => []
			}
		},
		methods: {
			...mapActions(['getCartList', 'changeCartList', 'addCartGoods']),
			//点击商品
			click() {
				this.$emit('click');
			},


			// 检测是否为购物车商品
			isCart(id) {
				return Object.keys(this.checkCart).includes(id + '');
			},

			// 检测商品在购物车中的下标
			checkGoodsIndex(id) {
				let cIndex = 0;
				this.cartList.forEach((item, index) => {
					if (id == item.goods_id) {
						cIndex = index;
					}
				});
				return cIndex;
			},

			// 更改商品数
			async onChangeNum(e, sku) {
				let gIndex = this.checkGoodsIndex(sku.goods_id);
				if (e.value != this.checkCart[sku.goods_id].num) {
					uni.showLoading({
						mask: true
					});
					this.$set(this.cartList[gIndex], 'goods_num', +e.value);
					await this.changeCartList({
						ids: [this.checkCart[sku.goods_id].cartOrderId],
						goodsNum: +e.value,
						art: 'change'
					});

					await uni.hideLoading();
				}
			},

			// 到达最小值
			onMin() {
				const that = this;
				let cartGoodId = 0;
				cartGoodId = this.cartList.filter(item => item.goods_id === that.detail.id)[0].id;
				uni.showModal({
					title: '删除提示',
					confirmColor: '#f0c785',
					content: `是否确认从购物车中删除此商品?`,
					success: res => {
						res.confirm && this.changeCartList({ ids: [cartGoodId], art: 'delete' });
					}
				});
			},

			// 增加
			plus(e, sku) {
				if (e.value >= sku.stock) {
					this.$u.toast('库存不足');
					return;
				}
				if (this.detail.activity_type === 'seckill' || this.detail.activity_type === 'groupon') {
					let rules = this.detail.activity.rules;
					if (rules.limit_buy != 0 && e.value >= rules.limit_buy) {
						this.$u.toast('本次活动最多购买' + rules.limit_buy + '件');
						return;
					}
				}
			},

			// 添加购物车,多规格
			async selSku(info) {
				if (this.detail.activity_type) {
					this.$Router.push({ path: '/pages/goods/detail', query: { id: this.detail.id } });
					return;
				}
				this.goodsInfo = {};
				this.getGoodsDetail(info.id);
				this.showSku = true;
			},

			// 商品详情
			getGoodsDetail(id) {
				let that = this;
				that.$http('goods.detail', {
					id: id
				}).then(res => {
					if (res.code === 1) {
						that.goodsInfo = res.data;
					}
				});
			},

			// 加入购物车
			addCart(sku) {
				if (sku.stock <= 0) {
					this.$u.toast('库存不足');
					return;
				}
				if (this.detail.activity_type) {
					this.$Router.push({ path: '/pages/goods/detail', query: { id: this.detail.id } });
					return;
				}
				let confirmGoodsList = {
					list: [{
						goods_id: sku.goods_id,
						goods_num: 1,
						sku_price_id: sku.id,
						goods_price: sku.price
					}],
					from: 'goods'
				};
				this.addCartGoods(confirmGoodsList).then(res => {
					if (res.code === 1) {
						this.$u.toast(res.msg);
					}
				});
			}
		}
	};
</script>

<style lang="scss">
	.goods-box {
		width: 345rpx;
		background: #fff;
		border-radius: 20rpx;
		overflow: hidden;

		.goods-bottom {
			background-size: 100% 100%;
			background-position: bottom center;
			background-repeat: no-repeat;
		}

		.img-box {
			width: 345rpx;
			height: 345rpx;
			overflow: hidden;
			position: relative;
			background-color: #fff;
			border-radius: 6rpx;

			.goods-img {
				width: 345rpx;
				height: 345rpx;
				background-color: #ccc;
			}
		}

		.title {
			width: 330rpx;
			vertical-align: center;
			font-size: 28rpx;
			font-weight: bold;
			line-height: 40rpx;
			color: #333333;
			padding-top: 6rpx;

			.title-tag {
				position: relative;
				top: -6rpx;
			}
		}

		.sub-title {
			font-size: 24rpx;
			font-weight: 400;
			width: 330rpx;
			color: #999999;
		}

		.price-box {
			.price {
				font-size: 30rpx;
				color: #ff3000;
				font-weight: 600;

				&::before {
					content: '￥';
					font-size: 24rpx;
				}
			}

			.origin-price {
				font-size: 26rpx;
				font-weight: 400;
				text-decoration: line-through;
				color: #c4c4c4;
			}

			.sales-box {
				font-size: 18rpx;

				font-weight: 400;
				color: #c4c4c4;
				line-height: 20rpx;
			}
		}

		// 购物车
		.cart-box {
			.cart-btn {
				width: 54rpx;
				height: 54rpx;
				border-radius: 50%;
				padding: 0;
				background: linear-gradient(90deg, #e9b461, #eecc89);
			}
		}
	}
</style>
